1806111426 has 32 divisors (see below), whose sum is σ = 4146462720. Its totient is φ = 513755856.

The previous prime is 1806111421. The next prime is 1806111449. The reversal of 1806111426 is 6241116081.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1806111393 and 1806111402.

It is not an unprimeable number, because it can be changed into a prime (1806111421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85186 + ... + 104253.

It is an arithmetic number, because the mean of its divisors is an integer number (129576960).

Almost surely, 2^1806111426 is an apocalyptic number.

1806111426 is an abundant number, since it is smaller than the sum of its proper divisors (2340351294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1806111426 is a wasteful number, since it uses less digits than its factorization.

1806111426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189678.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1806111426 is about 42498.3696863774. The cubic root of 1806111426 is about 1217.8155449870.

The spelling of 1806111426 in words is "one billion, eight hundred six million, one hundred eleven thousand, four hundred twenty-six".